1. spiny - Noun
2. spiny - Adjective
3. spiny - Adjective Satellite
Full of spines; thorny; as, a spiny tree.
Fig.: Abounding with difficulties or annoyances.
See Spinny.
Source: Webster's dictionarya horse with a short bristly mane Source: Internet
bristly shrubs Source: Internet
burred fruits Source: Internet
setaceous whiskers Source: Internet
the dorsal fin is spinous Source: Internet
A better etymology perhaps is from Latin sudis, plural sudes, "spines", which can be used of spiny fish or spiny terrain. Source: Internet